/Engine/Source/Runtime/Engine/Public/Animation/AnimInstanceProxy.h
Record pose for node of ID LinkID if it is currently being watched.
void RegisterWatchedPose ( const [FCompactPose](API\Runtime\Engine\FCompactPose) & Pose, const [FBlendedCurve](API\Runtime\Engine\Animation\FBlendedCurve) & InCurve, int32 LinkID )